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Twenty randomly selected students took the statistics final. If the sample mean was 88 and the ó =5.2, construct a 95% confidence interval for the mean score of the students.

  • Stats -


    CI95 = mean ± 1.96(sd/√n)

    With your data:

    CI95 = 88 ± 1.96(5.2/√20)

    Calculate for the interval.

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